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Computers are everywhere. Some of them are highly visible, in laptops, tablets, cell phones, and smart watches. But most are invisible, like those in appliances, cars, medical equipment, transportation systems, power grids, and weapons. We never see the myriad computers that quietly collect, share, and sometimes leak vast amounts of personal data about us. Through computers, governments and companies increasingly monitor what we do. Social networks and advertisers know far more about us than we should be comfortable with, using information we freely give them. Criminals have all-too-easy access to our data. Do we truly understand the power of computers in our world?Understanding the Digital World explains how computer hardware, software, networks, and systems work. Topics include how computers are built and how they compute; what programming is and why it is difficult; how the Internet and the web operate; and how all of these affect our security, privacy, property, and other important social, political, and economic issues. This book also touches on fundamental ideas from computer science and some of the inherent limitations of computers. It includes numerous color illustrations, notes on sources for further exploration, and a glossary to explain technical terms and buzzwords.

Computer. Automation --- Computer science --- Computer networks --- Security measures --- Computer security --- Computer systems --- Online social networks --- Informatique --- Réseaux d'ordinateurs --- Sécurité informatique --- Informatique -- Gestion --- Réseaux sociaux (Internet) --- Popular works. --- Management --- Ouvrages de vulgarisation --- Sécurité --- Mesures --- Online social networks.

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Numbers are often intimidating, confusing, and even deliberately deceptive―especially when they are really big. The media loves to report on millions, billions, and trillions, but frequently makes basic mistakes or presents such numbers in misleading ways. And misunderstanding numbers can have serious consequences, since they can deceive us in many of our most important decisions, including how to vote, what to buy, and whether to make a financial investment. In this short, accessible, enlightening, and entertaining book, Brian Kernighan teaches anyone―even diehard math-phobes―how to demystify the numbers that assault us every day. Giving you the simple tools you need to avoid being fooled by dubious numbers, « Millions, Billions, Zillions » is an essential survival guide for a world drowning in big―and often bad―data

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Computer. Automation